<template>
	<view>
		<view class="goods-list">
			<view v-for="(item, i) in goodsList" :key="i" @click="gotoDetail(item)">
				<my-goods :goods="item"></my-goods>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				queryObj: {
					query: '',  // 请求参数对象
					cid: '',    // 商品分类ID
					pagenum: 1, // 页码值
					pagesize: 10, // 每页显示条数
				},
				goodsList: [], // 商品列表数据
				total: 0,  //总数量
				isloading: false, // 节流阀
			};
		},
		onLoad(options) {
			console.log(options)
			this.queryObj.query = options.query || ''
			this.queryObj.cid = options.cid || ''
			// 调用获取商品列表数据的方法
			this.getGoodsList()
		},
		methods: {
			async getGoodsList(cb) {
				this.isloading = true
				const { data: res } = await uni.$http.get('/api/public/v1/goods/search', this.queryObj)
				this.isloading = false
				
				// 只要数据请求完毕，就立即按需调用 cb 回调函数  (如果 cd 存在 就调用这个函数 关闭下拉刷新)
				cb && cb()
				
				if(res.meta.status !== 200) return uni.$showMsg()
				this.goodsList = [...this.goodsList, ...res.message.goods]
				this.total = res.message.total
				
			},
			gotoDetail(item) {
				uni.navigateTo({
					url: '/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id
				})
			}
		},
		onReachBottom() {
			if(this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('全部数据加载完毕！')
			if(this.isloading) return
			this.queryObj.pagenum += 1 
			this.getGoodsList()
		},
		onPullDownRefresh() {
			this.queryObj.pagenum = 1
			this.total = 0
			this.isloading = false
			this.goodsList = []
			
			this.getGoodsList(() => uni.stopPullDownRefresh())
		}
	}
</script>

<style lang="scss">

</style>
